CN115394224A

CN115394224A - Circuit detection device of liquid crystal display module

Info

Publication number: CN115394224A
Application number: CN202211141833.0A
Authority: CN
Inventors: 罗武彬; 李卫强; 侯富英
Original assignee: Jiangxi Kehua Electronic Co ltd
Current assignee: Jiangxi Kehua Electronic Co ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2022-11-25
Anticipated expiration: 2042-09-20
Also published as: CN115394224B

Abstract

The invention discloses a circuit detection device of a liquid crystal display module, and particularly relates to the field of LED lamp belt detection, which comprises an LED detection pen, wherein the bottom of the LED detection pen is provided with a detection pen nib, the outer side of the LED detection pen is sleeved with an annular limiting disc, the bottom of the annular limiting disc is hinged with an anti-skidding movable clamping arm, one end of the anti-skidding movable clamping arm is sleeved with a corresponding elastic rope, the outer side of the corresponding elastic rope is provided with a plurality of corresponding limiting inserted rods, the corresponding elastic ropes are arranged among the plurality of corresponding limiting inserted rods, and the bottom of the corresponding limiting inserted rods is fixedly provided with corresponding clamping bases. According to the invention, the LED detection pen is arranged, and after the LED detection pen is fixed, the extension spring is compressed by pressing the movable press switch, so that the pen point of the detection pen is in contact with the positive electrode and the negative electrode, the detection purpose is achieved, the detection work can be completed by only one hand during detection, time and labor are saved, and convenience is improved.

Description

Circuit detection device of liquid crystal display module

Technical Field

The invention relates to the technical field of LED lamp strip detection, in particular to a circuit detection device of a liquid crystal display module.

Background

The liquid crystal display screen is a display mode by controlling the semiconductor light-emitting diodes and is formed by uniformly arranging tens of thousands to hundreds of thousands of semiconductor light-emitting diode pixel points. The LED display screen can be used for manufacturing LED pixel points with different colors by utilizing different materials to display various information such as characters, graphs, images, animation, quotations, videos, video signals and the like, the most widely applied at present is red, green and yellow, the liquid crystal display screen is divided into a graph-text display screen and a video display screen which are composed of LED matrix blocks, the graph-text display screen can synchronously display Chinese characters, english texts and graphs with a computer, the video display screen is controlled by a microcomputer, the graph-text and the images are combined, various information can be played in a real-time, synchronous and clear information transmission mode, two-dimensional, three-dimensional animation, video, television, VCD programs and live scenes can be displayed, the liquid crystal display screen has bright colors and strong stereoscopic impression, static images such as oil paintings and dynamic images such as movies, and can be widely applied to stations, docks, airports, markets, hospitals, hotels, banks, stock markets, building markets, auction houses, industrial enterprise management and other public places.

In the mill, unqualified LED lamp area needs to use the LED detector for detecting among the liquid crystal display, carry out the secondary screening, thereby confirm whether damage, it is usually that staff's both hands hold the positive negative pole that LED test pen aims at LED lamp area and detect, because the reason that the both hands held, do not fix well to LED lamp area, thereby inconvenient operation, consequently consuming time and wasting force, and under the batch operation of factory's assembly line, the staff appears tiredly easily, if LED test pen drops, the LED test pen of switch-on power supply extremely easily takes place danger with people's contact, therefore, to this problem, how to design out a liquid crystal display module's circuit detection device, become the problem that we need solve at present.

Disclosure of Invention

In order to overcome the above defects in the prior art, embodiments of the present invention provide a circuit detection apparatus for a liquid crystal display module, in which an LED detection pen is provided, and a movable push switch is pressed to stop a support limit bar when the support limit bar slides to a first U-shaped limit groove, the first U-shaped limit groove limits the support limit bar, and at the same time, a movable press plate fixes the LED lamp strip first, and the movable press plate is driven to retract into an inner cavity of a movable limit cylinder while a return spring is shortened, so as to leave a space for allowing a pen point of the detection pen to contact with a positive electrode and a negative electrode, thereby achieving the purpose of continuous detection.

In order to achieve the purpose, the invention provides the following technical scheme: a circuit detection device of a liquid crystal display module comprises an LED detection pen, wherein a detection pen nib is arranged at the bottom of the LED detection pen, an annular limiting disc is sleeved on the outer side of the LED detection pen, an anti-skidding movable clamping arm is hinged to the bottom of the annular limiting disc, a corresponding type elastic rope is sleeved at one end of the anti-skidding movable clamping arm, a corresponding type limiting insertion rod is arranged on the outer side of the corresponding type elastic rope, the number of the corresponding type limiting insertion rods is multiple, the corresponding type elastic rope is arranged among the multiple corresponding type limiting insertion rods, a corresponding type clamping base is fixedly installed at the bottom of the corresponding type limiting insertion rod, a first T-shaped sliding block is fixedly installed on one side of the corresponding type clamping base, a limiting rectangular block is slidably connected to the outer side of the first T-shaped sliding block, a flexible anti-skidding clamping disc is inserted into the top end of the corresponding type limiting insertion rod, and a second T-shaped sliding block is fixedly installed on one side of the flexible clamping disc;

the outer side of the annular limiting disc is fixedly provided with a push-pull sliding rod, the top of the push-pull sliding rod is in threaded connection with a knob type threaded cap, the outer side of the push-pull sliding rod is in sliding connection with a prefabricated limiting sliding rail, the bottom cross-sectional area of the knob type threaded cap is larger than that of the prefabricated limiting sliding rail, one end of the prefabricated limiting sliding rail is fixedly provided with a movable press switch, the bottom of the movable press switch is fixedly provided with a T-shaped sliding rod, the bottom of the T-shaped sliding rod is fixedly provided with a limiting sliding block, one side of the limiting sliding block is provided with a diamond-shaped limiting sliding groove, the top of the diamond-shaped limiting sliding groove is provided with a first U-shaped limiting groove, the bottom of the diamond-shaped limiting sliding groove is provided with a second U-shaped limiting groove, the inner side of the second U-shaped limiting groove is in sliding connection with a supporting limiting strip, one end of the supporting limiting strip is fixedly provided with a movable cantilever, the bottom of the supporting movable cantilever is hinged to be provided with a limiting seat, the bottom of the limiting sliding groove is fixedly provided with a movable limiting sliding groove, the inner side of the movable limiting sliding groove is provided with a dustproof isolating plate, the inner side of the dustproof isolating cylinder is provided with a dustproof isolating plate, and the dustproof isolating cylinder is provided with a dustproof isolating plate.

In a preferred embodiment, the outer side of the corresponding type limit insertion rod is provided with a plurality of strip-shaped anti-slip columns, and the corresponding type clamping base and the flexible anti-slip clamping disc are arranged in a clamping manner on the corresponding type elastic rope through the strip-shaped anti-slip columns of the corresponding type limit insertion rod.

In a preferred embodiment, the number of the LED detection pens is two, the two LED detection pens are arranged in a mirror symmetry manner with respect to a vertical center line of the T-shaped sliding rod, an LED strip is arranged at the bottom of a pen point of the detection pen, an anode and a cathode are arranged at the top of the LED strip, and the pen points of the detection pen are arranged in a one-to-one correspondence manner with the anode and the cathode.

In a preferred embodiment, a first limit supporting block is inserted into the transparent insulating isolation plate, and a first transverse supporting beam is fixedly mounted at the bottom of the first limit supporting block.

In a preferred embodiment, a first movable rack bar is fixedly mounted at the bottom of the first transverse support beam, and a circular gear is meshed with the outer side of the first movable rack bar.

In a preferred embodiment, a second movable toothed bar is meshed with the outer side of the circular gear, and a second transverse support beam is fixedly mounted at the bottom of the second movable toothed bar.

In a preferred embodiment, a second limit support block is fixedly installed at the bottom of the second transverse support beam, and a bearing bottom plate is inserted into the bottom of the second limit support block.

In a preferred embodiment, a protective case is arranged on the outer side of the first movable rack, a knob turntable is inserted into the central position of the protective case, and the circular gear and the knob turntable are integrally arranged.

The invention has the technical effects and advantages that:

1. after the LED detection pen is fixed, the LED detection pen slides in the prefabricated limiting slide rail through the push-pull type slide rod, so that the distance between the two LED detection pens is adjusted, the pen point of the detection pen is aligned with the positive and negative poles, the knob type screw cap is attached to the prefabricated limiting slide rail by rotating the knob type screw cap, so that the push-pull type slide rod is fixed, the movable pressing switch is pressed, so that the supporting limiting strip stops when sliding to the first U-shaped limiting groove, the first U-shaped limiting groove limits the supporting limiting strip, meanwhile, the movable pressing plate fixes the LED lamp strip firstly, the movable pressing plate is driven to retract into the inner cavity of the movable limiting cylinder while being shortened, so that a space is reserved, the pen point of the detection pen is in contact with the positive and negative poles, the purpose of continuous detection is achieved, after the detection is finished, the movable pressing switch is pressed again, so that the supporting limiting strip slides to the right inner side of the diamond-shaped limiting groove, the supporting limiting strip quickly slides to the second U-shaped limiting groove to stop and fix the supporting limiting strip by utilizing the reaction force of the stretching spring, so that the supporting limiting strip quickly slides to the second U-shaped limiting groove to stop and fix the LED detection pen point, the whole LED detection pen is lifted and convenient to save time and labor when the detection pen is finished by pressing with one hand;

2. the worker grasps the corresponding limiting insertion rod with one hand and pushes the limiting rectangular block with the other hand to enable the limiting rectangular block to slide to one side of the anti-skidding movable clamping arm, so that the anti-skidding movable clamping arm clamps the outer side of the LED detection pen, then presses the flexible anti-skidding clamping disc, and presses the flexible anti-skidding clamping disc close to the corresponding clamping base, so that the corresponding elastic rope is fixed, the LED detection pen is fixed, and the pen point of the detection pen is hidden in the corresponding limiting sliding groove, so that the danger caused by mistaken touch of the worker is avoided, and the safety is improved;

3. the staff is through rotating the knob carousel for circular gear rotates, utilizes circular gear to rotate and drives first movable rack bar and the slip of second movable rack bar, thereby adjusts the distance between insulating division board of transparent form and the bearing bottom plate, makes and to detect to the LED lamp area of co-altitude not size, has consequently promoted the flexibility.

Drawings

FIG. 1 is a schematic isometric view of the present invention.

FIG. 2 is an enlarged view of the portion A of FIG. 1 according to the present invention.

Fig. 3 is a partial structural sectional view of the present invention.

FIG. 4 is an enlarged view of the portion B of FIG. 3 according to the present invention.

FIG. 5 is an enlarged view of the structure of the portion C of FIG. 3 according to the present invention.

FIG. 6 is an enlarged view of the structure of the portion D in FIG. 1 according to the present invention.

Fig. 7 is a schematic structural view of a corresponding limit inserted link according to the present invention.

The reference signs are: 1. an LED detection pen; 2. detecting a pen point of the pen; 3. an annular limiting disc; 4. an anti-skid movable clamping arm; 5. corresponding elastic ropes; 6. a corresponding limit inserted link; 7. correspondingly clamping the base; 8. a first T-shaped slider; 9. a limiting rectangular block; 10. a flexible anti-slip chuck; 11. a second T-shaped slider; 12. a push-pull slide bar; 13. a knob-type screw cap; 14. a prefabricated limiting slide rail; 15. a movable push switch; 16. a T-shaped slide bar; 17. an extension spring; 18. a dust-proof cylinder; 19. a transparent insulating spacer; 20. a corresponding limit chute; 21. an LED light strip; 22. a positive electrode and a negative electrode; 23. a first limit supporting block; 24. a first cross-brace beam; 25. a first movable rack bar; 26. a circular gear; 27. a second movable rack bar; 28. a second limit support block; 29. a load-bearing floor; 30. a protection case; 31. a knob dial; 32. a second transverse support beam; 33. a limiting type sliding block; 34. a diamond-shaped limiting chute; 35. a first U-shaped limiting groove; 36. a second U-shaped limiting groove; 37. supporting a limiting strip; 38. supporting a movable cantilever; 39. a limiting hinge seat; 40. a movable limiting cylinder; 41. a return spring; 42. a movable pressing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1: referring to the attached drawings 1-7 of the specification, a circuit detection device of a liquid crystal display module comprises an LED detection pen 1, as shown in FIG. 1, the bottom of the LED detection pen 1 is provided with a detection pen nib 2 for detection, the outer side of the LED detection pen 1 is sleeved with an annular limiting disc 3, the bottom of the annular limiting disc 3 is hinged with an anti-skid movable clamping arm 4, the LED detection pen 1 is clamped and fixed through the arrangement of the anti-skid movable clamping arm 4, one end of the anti-skid movable clamping arm 4 is sleeved with a corresponding elastic rope 5, the anti-skid movable clamping arm 4 is used for fixing the LED detection pen 1 through tensioning the corresponding elastic rope 5, as shown in FIG. 2, the outer side of the corresponding elastic rope 5 is provided with a corresponding limiting inserted rod 6, the number of the corresponding limiting inserted rods 6 is multiple, the corresponding elastic ropes 5 are arranged among the corresponding limiting insertion rods 6, the corresponding elastic ropes 5 are limited by the corresponding limiting insertion rods 6, a corresponding clamping base 7 for supporting is fixedly arranged at the bottom of each corresponding limiting insertion rod 6, a first T-shaped sliding block 8 is fixedly arranged on one side of each corresponding clamping base 7, a limiting rectangular block 9 is connected to the outer side of each first T-shaped sliding block 8 in a sliding mode, the first T-shaped sliding blocks 8 and second T-shaped sliding blocks 11 are limited by the limiting rectangular blocks 9, the first T-shaped sliding blocks 8 and the second T-shaped sliding blocks 11 can slide in the limiting rectangular blocks 9, a flexible clamping disc 10 is inserted into the top end of each corresponding limiting insertion rod 6, and a second T-shaped sliding block 11 is fixedly arranged on one side of each flexible clamping disc 10;

referring to the attached drawings 1-7 of the specification, as shown in fig. 4, a push-pull sliding rod 12 is fixedly installed on the outer side of an annular limiting disc 3, the top of the push-pull sliding rod 12 is in threaded connection with a knob type threaded cap 13, the outer side of the push-pull sliding rod 12 is in sliding connection with a prefabricated limiting slide rail 14, the push-pull sliding rod 12 slides in the prefabricated limiting slide rail 14, so that the distance between two LED detection pens 1 is adjusted, and the LED detection pens are more convenient to use, the cross-sectional area of the bottom end of the knob type threaded cap 13 is larger than that of the bottom end of the prefabricated limiting slide rail 14, after the adjustment is completed, the knob type threaded cap 13 is enabled to be attached to the prefabricated limiting slide rail 14 by rotating the knob type threaded cap 13, so that the push-pull sliding rod 12 is fixed, a movable push switch 15 is fixedly installed at one end of the prefabricated limiting slide rail 14, a T-shaped sliding rod 16 is fixedly installed at the bottom of the movable push switch 15, a limiting slider 33 is fixedly installed at the bottom of the T-shaped sliding rod 16, as shown in fig. 5, a diamond-shaped limiting sliding groove 34 is formed on one side of the limiting sliding block 33, a first U-shaped limiting groove 35 is formed on the top end of the diamond-shaped limiting sliding groove 34, a second U-shaped limiting groove 36 is formed on the bottom end of the diamond-shaped limiting sliding groove 34, a supporting limiting strip 37 is slidably connected to the inner side of the second U-shaped limiting groove 36, a supporting movable cantilever 38 is fixedly installed at one end of the supporting limiting strip 37, a limiting hinge seat 39 is hinged to the bottom of the supporting movable cantilever 38, a movable limiting cylinder 40 is fixedly installed at the bottom of the limiting sliding block 33, a return spring 41 is arranged on the inner side of the movable limiting cylinder 40, a movable pressure plate 42 is arranged at the bottom end of the return spring 41, an extension spring 17 is sleeved on the outer side of the movable limiting cylinder 40, a dustproof cylinder 18 is arranged on the outer side of the extension spring 17, a T-shaped sliding rod 16 is slidably connected to the inner cavity of the dustproof cylinder 18, the T-shaped sliding rod 16 and the extension spring 17 are limited by the dustproof cylinder 18;

referring to the attached drawings 1-7 of the specification, as shown in fig. 3, a transparent insulating isolation plate 19 is inserted into the bottom of a dustproof cylinder 18, a corresponding limiting sliding groove 20 is formed in the transparent insulating isolation plate 19, one end of a pen nib 2 of a detection pen is arranged on the inner side of the corresponding limiting sliding groove 20, the pen nib 2 of the detection pen is hidden in the inner side of the corresponding limiting sliding groove 20, so that danger caused by error contact of a worker is avoided, a plurality of strip-shaped anti-slip columns are arranged on the outer side of a corresponding limiting insertion rod 6, a corresponding clamping base 7 and a flexible anti-slip clamping disc 10 are arranged on one side of a corresponding flexible clamping arm 4 through the strip-shaped anti-slip column of the corresponding limiting insertion rod 6, the worker grasps the corresponding anti-slip limiting insertion rod 6 by one hand through the strip-slip column of the corresponding limiting insertion rod 6, the other hand pushes the limiting rectangular block 9 to slide the limiting block 9 to one side of the movable anti-slip clamping arm 4, so that the movable anti-slip clamping arm 4 clamps the outer side of the LED pen 1, then presses the flexible clamping disc 10, the flexible clamping disc 10 and the flexible clamping disc 10 is arranged on the corresponding clamping rod, and the flexible clamping disc 10, and the flexible clamping disc is arranged on the corresponding limiting insertion rod, and the flexible clamping disc 6, and the flexible clamping disc is arranged corresponding clamping disc, and the flexible clamping disc 6, the two LED detection pens 1 are arranged in a mirror symmetry mode about the vertical center line of the T-shaped sliding rod 16, the LED lamp belts 21 are arranged at the bottoms of the pen nibs 2 of the detection pens, the positive and negative electrodes 22 are arranged at the tops of the LED lamp belts 21, and the pen nibs 2 of the detection pens are arranged in a one-to-one correspondence mode with the positive and negative electrodes 22.

To the technical scheme, when the device is actually used, a worker grasps the corresponding limiting insertion rod 6 with one hand and pushes the limiting rectangular block 9 with the other hand to enable the limiting rectangular block 9 to slide to one side of the anti-skidding movable clamping arm 4, so that the anti-skidding movable clamping arm 4 clamps the outer side of the LED detection pen 1, then presses the flexible anti-skidding clamping disc 10, the flexible anti-skidding clamping disc 10 is close to the corresponding clamping base 7 to fix the corresponding bungee cord 5, so that the LED detection pen 1 is fixed, after the LED detection pen 1 is fixed, the LED detection pen slides in the prefabricated limiting slide rail 14 through the push-pull type sliding rod 12, so that the distance between the two LED detection pens 1 is adjusted, the pen point 2 of the detection pen is aligned with the positive and negative poles 22, and the knob type screw cap 13 is attached to the prefabricated limiting slide rail 14 through rotating the knob type screw cap 13, thereby fixing the push-pull type sliding rod 12, compressing the extension spring 17 by pressing the movable press switch 15, lowering the T-shaped sliding rod 16 as a whole to extrude the limit type sliding block 33 to the extension spring 17, when the limit type sliding block 33 descends, the support limit bar 37 slides on the left inner side of the diamond limit sliding groove 34, the support movable cantilever 38 deflects along with the support limit bar 37, when the support limit bar 37 slides to the first U-shaped limit groove 35, the first U-shaped limit groove 35 limits the support limit bar 37, at the same time, the limit type sliding block 33 descends to drive the movable press plate 42 to descend to contact with the LED lamp strip 21, the movable press plate 42 fixes the LED lamp strip 21 first, the limit type sliding block 33 extrudes the return spring 41 in the process of continuously pressing down, the return spring 41 shortens, and simultaneously drives the movable press plate 42 to retract into the inner cavity of the movable limit barrel 40, thereby leave the space and make the contact of test pen nib 2 and positive negative pole 22, reach the purpose that detects, after detecting, press movable press switch 15 once more for support spacing 37 and slide to the right inboard of rhombus spacing spout 34, utilize extension spring 17's reaction force, make support spacing 37 and slide to second U type spacing groove 36 department fast and stop fixedly, make the whole rising of LED test pen 1 reset.

Example 2: referring to the attached drawings 1-7 of the specification, as shown in fig. 6, a first limit support block 23 for supporting and limiting is inserted into the transparent insulating isolation plate 19, a first transverse support beam 24 for supporting the transparent insulating isolation plate 19 is fixedly installed at the bottom of the first limit support block 23, the transparent insulating isolation plate 19 is driven to ascend and descend through the first transverse support beam 24, a first movable rack bar 25 is fixedly installed at the bottom of the first transverse support beam 24, a circular gear 26 is engaged at the outer side of the first movable rack bar 25, a second movable rack bar 27 is engaged at the outer side of the circular gear 26, a second transverse support beam 32 is fixedly installed at the bottom of the second movable rack bar 27, a second limit support block 28 for fixing and limiting is fixedly installed at the bottom of the second transverse support beam 32, a bottom plate 29 for supporting is inserted into the bottom of the second limit support block 28, a protection case 30 is arranged at the outer side of the first movable rack bar 25, the circular gear 26 is protected by the protection case 30, a turntable 31 is inserted into the center of the protection case 30, the turntable 31 is connected with the circular gear 26, and the turntable 31 is driven by a knob 31, so as to rotate through the knob 26.

It should be noted that, when the device is actually used, a worker rotates the knob dial 31 to rotate the circular gear 26, and the circular gear 26 rotates to drive the first movable rack 25 and the second movable rack 27 to slide, so as to adjust the distance between the transparent insulating isolation plate 19 and the load-bearing bottom plate 29.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. The utility model provides a circuit detection device of liquid crystal display module, includes that LED detects pen (1), its characterized in that: the anti-skidding type LED detection pen comprises an LED detection pen (1), a detection pen nib (2) and a corresponding type elastic rope (5), wherein an annular limiting disc (3) is sleeved on the outer side of the LED detection pen (1), anti-skidding movable clamping arms (4) are hinged to the bottom of the annular limiting disc (3), the corresponding type elastic rope (5) is sleeved at one end of each anti-skidding movable clamping arm (4), corresponding type limiting insertion rods (6) are arranged on the outer sides of the corresponding type elastic ropes (5), a plurality of corresponding type limiting insertion rods (6) are arranged, the corresponding type elastic ropes (5) are arranged among the corresponding type limiting insertion rods (6), corresponding type clamping bases (7) are fixedly installed at the bottoms of the corresponding type limiting insertion rods (6), first T-shaped sliding blocks (8) are fixedly installed on one sides of the corresponding type clamping bases (7), limiting type rectangular blocks (9) are slidably connected to the outer sides of the first T-shaped sliding blocks (8), a flexible anti-skidding clamping disc (10) is fixedly installed at the top ends of the corresponding type limiting insertion rods (6), and a second sliding block (11) is fixedly installed on one side of the flexible clamping disc (10);

the outer side of the annular limiting disc (3) is fixedly provided with a push-pull sliding rod (12), the top of the push-pull sliding rod (12) is in threaded connection with a knob-type threaded cap (13), the outer side of the push-pull sliding rod (12) is in sliding connection with a prefabricated limiting slide rail (14), the bottom cross-sectional area of the knob-type threaded cap (13) is larger than that of the prefabricated limiting slide rail (14), one end of the prefabricated limiting slide rail (14) is fixedly provided with a movable press switch (15), the bottom of the movable press switch (15) is fixedly provided with a T-type sliding rod (16), the bottom of the T-type sliding rod (16) is fixedly provided with a limiting slider (33), one side of the limiting slider (33) is provided with a diamond-shaped limiting slide groove (34), the top of the diamond-shaped limiting slide groove (34) is provided with a first U-shaped limiting groove (35), the bottom of the diamond-shaped limiting slide groove (34) is provided with a second U-shaped limiting groove (36), the inner side of the second U-shaped limiting groove (36) is slidably connected with a supporting limiting bar (37), one end of the cantilever-limiting slide bar (38) is hinged with a cantilever-limiting spring (40), and the inner side of the cantilever-limiting spring (39) is hinged with a cantilever-limiting spring (41), the bottom of reset spring (41) is equipped with movable pressing plate (42), extension spring (17) have been cup jointed in the outside of the spacing section of thick bamboo of activity (40), the outside of extension spring (17) is equipped with dustproof drum (18), T type slide bar (16) are sliding connection form setting in the inner chamber of dustproof drum (18), the bottom of dustproof drum (18) is pegged graft and is had transparent insulating division board (19), the inside of transparent insulating division board (19) has been seted up and has been corresponded spacing spout (20), the one end setting of detection pen nib (2) is in the inboard that corresponds spacing spout (20) of formula.

2. The device for detecting the circuit of the liquid crystal display module according to claim 1, wherein: the outer side of the corresponding type limiting insertion rod (6) is provided with a plurality of strip-shaped anti-slip columns, and the corresponding type clamping base (7) and the flexible anti-slip clamping disc (10) are arranged in a clamping manner on the corresponding type elastic rope (5) through the strip-shaped anti-slip columns of the corresponding type limiting insertion rod (6).

3. The device for detecting the circuit of the liquid crystal display module according to claim 1, wherein: the quantity of LED detection pen (1) sets up to two, two LED detection pen (1) is mirror symmetry form setting about the vertical central line of T type slide bar (16), the bottom of detecting pen nib (2) is equipped with LED lamp area (21), the top in LED lamp area (21) is equipped with positive negative pole (22), it is the one-to-one form setting with positive negative pole (22) to detect pen nib (2).

4. The device of claim 3, wherein: a first limiting supporting block (23) is inserted into the transparent insulating isolation plate (19), and a first transverse supporting beam (24) is fixedly mounted at the bottom of the first limiting supporting block (23).

5. The device of claim 4, wherein: the bottom of the first transverse supporting beam (24) is fixedly provided with a first movable toothed bar (25), and the outer side of the first movable toothed bar (25) is meshed with a circular gear (26).

6. The device of claim 5, wherein: a second movable toothed bar (27) is meshed with the outer side of the circular gear (26), and a second transverse supporting beam (32) is fixedly mounted at the bottom of the second movable toothed bar (27).

7. The device of claim 6, wherein: and a second limiting supporting block (28) is fixedly mounted at the bottom of the second transverse supporting beam (32), and a bearing bottom plate (29) is inserted into the bottom of the second limiting supporting block (28).

8. The device of claim 7, wherein: the outer side of the first movable rack (25) is provided with a protective case (30), the center of the protective case (30) is inserted with a knob turntable (31), and the circular gear (26) and the knob turntable (31) are arranged in an integrated manner.